Materials and Energy: Energy Resources

Energy resources can be categorised into two main groups: renewable and non-renewable. Non-renewable include coal, oil, and natural gas. They were formed millions of years ago and once used, cannot be replenished. Renewable energy resources, on the other hand, include wind, solar, and tidal energy, which can be continuously replenished.
Fossil fuels are non-renewable energy resources that release energy when they are burned. They are relatively easy and cheap to extract and have been the major source of energy for many years, but they are being depleted at an alarming rate and cause pollution.
Renewable energy resources are more sustainable than non-renewable resources, as they can be replenished. However, they often rely on specific natural conditions; for example, solar energy relies on sunlight, wind energy on wind, and tidal energy on tides.
Nuclear power is another source of energy, which doesn’t produce carbon dioxide but produces radioactive waste. This can be dangerous and difficult to dispose of safely.
Biofuels are another type of energy resource which are derived from living or once-living organisms. They are renewable and can be used in place of fossil fuels, but they can also have negative environmental impacts such as deforestation.
When deciding on an energy resource to use, several factors need to be considered, including the resource’s availability, cost, efficiency, and environmental impact.
Energy conservation is vital in maintaining a sustainable future. This can be done by improving energy efficiency or reducing energy use altogether.
Improved technology can make energy use more efficient. For example, smart meters allow us to track and control our energy use more effectively.
Transferring and storing energy often results in energy loss. Improving strategies for energy transfer and storage can help to reduce this loss, making our energy use more efficient.
The issue of energy resources and sustainability is a key concern for policymakers and a major focus in the area of science and technology. Balancing the need for energy with environmental considerations and long-term sustainability is a complex and ongoing challenge. Scientific breakthroughs and constant innovation in this field have the potential to greatly impact our future as we endeavour to guide Spaceship Earth towards a more sustainable future.